Population and Sample

Determine whether the sample is biased or unbiased.

To estimate the number of students in your school who play a sport outside of school, you decide to survey the players on the boys’ baseball team.

• biased

• unbiased

Determine whether the sample is biased or unbiased.

The Yearbook Committee must choose among three different themes for this year’s yearbook. To help make their decision, they survey 100 random students during lunch.

• biased

• unbiased

Determine whether the sample is biased or unbiased.

At the end of the year, a math teacher

decides to survey his students to determine

what they liked best about his class. He uses

his first period class as his sample.

• biased

• unbiased

Determine whether the sample is biased or unbiased.

The Yearbook Committee must choose among three different themes for this year’s yearbook. To help make their decision, they survey 100 random students during lunch.

• biased

• unbiased

Determine whether the sample is biased or unbiased.

Mark would like to determine the exercise

habits of students in his school. He surveys

people on his track team.

• biased

• unbiased

Determine whether the sample is biased or unbiased.

Katy would like to approximate the number of students in her school that own a pet. She decides to survey five students in her homeroom.

• biased

• unbiased

What percent of the students prefer sugar cookies?

• 18%

• 30%

• 25%

• 70%

What percent reported pumpkin pie as their favorite?

• 15%

• 12%

• 18%

• 20%

If the band orders 500 tubs of cookie dough, how many tubs of sugar cookie dough should they order?

• 200 tubs

• 500 tubs

• 150 tubs

• 100 tubs

If there are 450 total students in the 8th grade, how many would you expect to send at least 76 text messages a day?

• 32

• 150

• 192

• 50